Correction: JMJD2C promotes colorectal cancer metastasis via regulating histone methylation of MALAT1 promoter and enhancing β-catenin signaling pathway

Correction: J Exp Clin Cancer Res 38, 435 (2019)

https://doi.org/10.1186/s13046-019-1439-x

Following publication of the original article [1], errors were identified in Figs. 2, 3, 7 and S1; specifically:

• Figure 2F: an image for the shRNA/JMJD2C group (72h) was incorrectly used for a representative picture; the correct image is now used; correspondingly, the quantitative graph in Fig. 2G has also been corrected

• Figure 3B: one set of immunofluorescence pictures for shRNA/NC group were incorrectly used for the representative pictures; the correct images are now used

• Figure 7: the order of shRNA/NC group and EmptyVector group for c-Myc was accidentally reversed in typesetting, which was inconsistent with the JMJD2C images in Figure 6 and ITGBL1 images in Figure 7; both sets of images have now been transposed to correct the error

• Figure S1D: an image for Empty Vector group was incorrectly used for a representative picture; the correct image is now used; correspondingly, the quantitative graph in Figure S1E has also been corrected.

Fig. 2.

JMJD2C promoted the metastasis of CRC cells in vitro. a-c Real time PCR and western blotting were performed to confirm the gene silencing and overexpressing efficiency for JMJD2C. HCT116 was transiently transfected with shRNA/NT vector, shRNA/JMJD2C vector, empty overexpression vector, or JMJD2C overexpression vector. d Migration assays of HCT116 cells transfected with shRNA/NT, shRNA/JMJD2C, empty vector, or JMJD2C overexpression vector, respectively. e Numbers of migrated cells are shown as mean ± SD; n = 3. f-g Wound healing assay was used to evaluate the effect of JMJD2C on migration of HCT116 cells. *, P < 0.05; **, P < 0.01 (t test)

Fig. 3.

Translocation of JMJD2C protein from the cytoplasm into the nuclei in CRC cells in vitro. a-b Immunofluorescence detection of JMJD2Cprotein in HCT116 or LoVo cells transiently transfected with shRNA/NT vector, shRNA/JMJD2C vector, empty overexpression vector, or JMJD2C overexpression vector. c-d Western blot and quantitative assay of JMJD2C protein (nuclear and whole cell lysates) in HCT116 or LoVo cells transiently transfected with shRNA/NT vector, shRNA/JMJD2C vector, empty overexpression vector, or JMJD2C overexpression vector. *, P < 0.05; **, P < 0.01 (t test)

Fig. 7.

JMJD2C elevated the expression of MALAT1 and β-catenin signaling related proteins in CRC lung metastasis mice models. a Real-time PCR was performed to detect the expression of MALAT1 in lung metastatic nodules from 6 mice subjected to the indicated treatments. b-c Western blot and quantitative assay of β-catenin protein (nuclear, cytoplasm and whole cell lysates) in the lung metastatic tissues from 6 mice subjected to the indicated treatments. d-e Immunohistochemical and quantitative analysis of ITGBL1 and c-Myc proteins on consecutive tissue microarray slides of lung metastatic nodules from 6 mice subjected to the indicated treatments.*, P < 0.05; **, P < 0.01 (t test)

The corrections do not have any effect on the final conclusions of the paper.